我有一個場景,我想以編程方式呈現ActionLink,從控制器或理想的擴展方法以太。這樣我就可以包裝一些邏輯來顯示鏈接並從我的視圖中刪除該邏輯。以編程方式呈現ActionLink
我可以使用CodePlex的MVC Futures項目創建一個ActionLink。
ActionLink actionLink = new ActionLink();
actionLink.ActionName = "MyActionName";
actionLink.ControllerName = "MyControllerName";
有一個RenderControl方法需要一個我一直在嘗試使用的HtmlTextWriter。我無法得到這個工作,每次在Microsoft.Web.Mvc程序集(Futures)中拋出一個空引用異常。
[NullReferenceException: Object reference not set to an instance of an object.]
Microsoft.Web.Mvc.Controls.ActionLink.Render(HtmlTextWriter writer) +643
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
MvcSpike.Controllers.HomeController.Index() in C:\...\Controllers\HomeController.cs:33
lambda_method(ExecutionScope , ControllerBase , Object[]) +74
System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +17
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +178
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +24
System.Web.Mvc.<>c__DisplayClassd.<InvokeActionMethodWithFilters>b__a() +52
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +254
System.Web.Mvc.<>c__DisplayClassf.<InvokeActionMethodWithFilters>b__c() +19
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +192
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +314
System.Web.Mvc.Controller.ExecuteCore() +105
System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +39
System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +7
System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__4() +34
System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +21
System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +12
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +59
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +44
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +7
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8679150
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155
任何幫助將是偉大的。
謝謝,這個作品很棒。總之,我只是想爲我建立的鏈接,我可以把我自己的HTML幫手。回答Brian下面,我在我的觀點中有這樣的想法,我想用更好的東西包裝起來http://gist.github.com/601732 – 2010-09-28 20:41:08